Pith Number

pith:KGEDQQHL

pith:2008:KGEDQQHLZ3YUI4GUYS3L2CC66R

not attested not anchored not stored refs pending

f(R) Cosmology from q-Theory

F.R. Klinkhamer, G.E. Volovik

arxiv:0807.3896 v4 · 2008-07-24 · gr-qc · astro-ph · cond-mat.other · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KGEDQQHLZ3YUI4GUYS3L2CC66R}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

2 papers in Pith

Thermodynamics of homogeneous Universes: de Sitter, Bonnor-Melvin and static Einstein

Receipt and verification

First computed	2026-07-04T15:38:07.803868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51883840ebcef14470d4c4b6bd085ef46ee4dd19e82ad73275f7afd9c9c26f8b

Aliases

arxiv: 0807.3896 · arxiv_version: 0807.3896v4 · doi: 10.48550/arxiv.0807.3896 · pith_short_12: KGEDQQHLZ3YU · pith_short_16: KGEDQQHLZ3YUI4GU · pith_short_8: KGEDQQHL

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KGEDQQHLZ3YUI4GUYS3L2CC66R \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 51883840ebcef14470d4c4b6bd085ef46ee4dd19e82ad73275f7afd9c9c26f8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "baa76158803aae28f39056a9c964e7457ccd1f2aabdb70e20af0576931809873",
    "cross_cats_sorted": [
      "astro-ph",
      "cond-mat.other",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-07-24T19:14:44Z",
    "title_canon_sha256": "f4e644870faf9b00b85e9266ec01f0afe42ceab638b1eaebdc69197725a92d8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3896",
    "kind": "arxiv",
    "version": 4
  }
}